Unique patent pending liquid separator removes 99.9% oil and water from compressed air lines Toronto (PRWEB) June 27, 2011 The Nex Flowâ„¢ X-Streamâ„¢ Liquid Super Separator uses a world patent pending special radial nozzle centrifugal design to remove 99.9% of liquid mist (including water and oil mist) without the need of a replaceable filter element.